We have a local server we can access only inside the company network.
We want the HTTPS in our application which run Tomcat.
We generate a .csr file and self-signed it. But below message is displayed on Google Chrome : NET::ERR_CERT_COMMON_NAME_INVALID
It seems that we have to sign the certificate by a CA authority.
My question is How can I signed the .csr with let'sencrypt ?
So so you mean that I can't have signed certificates if my server is only accessible in local network ?
Is it only applicable with Letsencrypt or it is applicable for all ca authority ?
Thank you again for your help
You can get a Let's Encrypt certificate by fulfilling a dns-01 challenge as long as the DNS for the domain name is publicly accessible. To my knowledge, any publicly-trusted certificate authority will only vouch for a domain name for which it can verify control.